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ECOLOGY AND THE BIOSPHERE. YOU MUST KNOW… THE ROLE OF ABIOTIC FACTORS IN THE FORMATION OF BIOMES FEATURES OF FRESHWATER AND MARINE BIOMES MAJOR TERRESTRIAL.

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Presentation on theme: "ECOLOGY AND THE BIOSPHERE. YOU MUST KNOW… THE ROLE OF ABIOTIC FACTORS IN THE FORMATION OF BIOMES FEATURES OF FRESHWATER AND MARINE BIOMES MAJOR TERRESTRIAL."— Presentation transcript:

1 ECOLOGY AND THE BIOSPHERE

2 YOU MUST KNOW… THE ROLE OF ABIOTIC FACTORS IN THE FORMATION OF BIOMES FEATURES OF FRESHWATER AND MARINE BIOMES MAJOR TERRESTRIAL BIOMES AND THEIR CHARACTERISTICS

3 CONCEPT 52.2 INTERACTIONS BETWEEN ORGANISMS AND THE ENVIRONMENT LIMIT THE DISTRIBUTION OF SPECIES

4 ECOLOGY STUDY OF THE INTERACTIONS BETWEEN ORGANISMS AND THE ENVT BIOTIC – LIVING – MAY INCLUDE BEHAVIORS AND INTERACTION AMONG SPECIES ABIOTIC – NONLIVING, CHEMICAL, AND PHYSICAL COMPONENTS EX. TEMP, WATER, SALINITY, SUNLIGHT, AND SOIL

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6 CLIMATE MAJOR COMPONENTS INCLUDE TEMP, PRECIPITATION, SUNLIGHT, AND WIND MACROCLIMATE PATTERNS – GLOBAL, REGIONAL, OR LOCAL LEVEL MICROCLIMATES – SMALL-SCALE ENVTL VARIATIONS

7 CONCEPT 52.3 AQUATIC BIOMES ARE DIVERSE AND DYNAMIC SYSTEMS THAT COVER MOST OF EARTH

8 BIOMES MAJOR TYPES OF ECOSYSTEMS THAT OCCUPY VERY BROAD GEOGRAPHIC REGIONS AQUATIC BIOMES – MAKE UP THE LARGEST PART OF THE BIOSPHERE COVER 75% OF EARTH’S SURFACE FRESHWATER MARINE

9 PHOTIC ZONE – ENOUGH LIGHT FOR PHOTOSYNTHESIS TO OCCUR APHOTIC ZONE – VERY LITTLE LIGHT PENETRATES BENTHIC ZONE – AT BOTTOM OF THE BIOME – MADE UP OF SAND, INORGANIC AND ORGANIC (INCLUDING DETRITUS) MATTER THERMOCLINES – NARROW LAYERS OF FAST TEMPERATURE CHANGE THAT SEPARATE A WARM UPPER LAYER AND COLD DEEPER WATERS

10 FRESHWATER BIOMES INCLUDE STANDING BODIES OF WATER (LAKES AND WETLANDS) AND MOVING BODIES (STREAMS AND RIVERS)

11 LITTORAL ZONE (WELL-LIT SHALLOW WATERS NEAR THE SHORE) - ROOTED AND FLOATING AQUATIC PLANTS LIMNETIC ZONE (WELL-LIT BUT FURTHER FROM SHORE) – PHYTOPLANKTON OLIGOTROPHIC LAKES – DEEP LAKES THAT ARE NUTRIENT-POOR AND OXYGEN-RICH – LOW PLANKTON EUTROPHIC LAKES – SHALLOWER, HIGHER NUTRIENT AND LOWER OXYGEN CONTENT – HIGH PLANKTON

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13 RIVERS AND STREAMS – CURRENTS, GREAT DIVERSITY OF ORGANISMS ESTUARIES – AREAS WHERE FRESHWATER STREAMS OR RIVERS MERGE WITH AN OCEAN

14 MARINE BIOMES INTERTIDAL ZONE – WHERE LAND MEETS THE WATER, TIDES NERITIC ZONE – BEYOND INTERTIDAL ZONE, IS THE SHALLOW WATER OVER THE CONTINENTAL SHELVES PELAGIC BIOME – VAST REALM OF OPEN BLUE WATER CORAL REEF – CREATED BY CNIDARIANS – CALCIUM CARBONATE SHELLS – PRODUCTIVE ECOSYSTEM

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16 CONCEPT 52.4 CLIMATE LARGELY DETERMINES THE DISTRIBUTION AND STRUCTURE OF TERRESTRIAL BIOMES

17 SAVANNAS – GRASSES AND SOME TREES, DROUGHT AND FIRES COMMON DESERT – SPARSE RAINFALL, CAM PLANTS, SPINES AND WAXY LEAVES, TEMP EXTREME CHAPARRAL – DENSE, SPINY, EVERGREEN SHRUBS, COASTAL AREAS WITH MILD RAINY WINTERS AND LONG, HOT, DRY SUMMERS

18 TEMPERATE BROADLEAF FOREST – DECIDUOUS TREES, CANOPY THAT LOSE LEAVES, ANIMALS HIBERNATE OR MIGRATE CONIFEROUS FOREST – CONE- BEARING TREES TUNDRA – PERMAFROST, VERY COLD TEMP, HIGH WINDS, LITTLE RAINFALL TROPICAL FOREST – CANOPY AND UNDERSTORY, LITTLE SUNLIGHT THROUGH CANOPY, EPIPHYTES (PLANTS GROW ON OTHER PLANTS), GREATEST BIODIVERSITY


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